Features 【Efficient Water Flow Control】This HT-800 G1 Thread 220V Water Pump Flow Sensor Automatic Control Switch is designed to control the on/off operation of the pump based on water flow. 【Stable Performance】With a separate design for the induction chamber, magnetic control chamber and electronic components, this switch provides stable performance and avoids switch failure caused by iron matter in the pipeline being magnetically adsorbed. 【High Temperature Resistance】Made of high-temperature resistant materials, this switch can be used for both hot (up to 70℃) and cold water. 【Low Water Pressure Startup】The reset spring made of high-quality stainless steel allows the switch to start the pump when the water pressure is greater than 0.03KG, making it suitable for low-pressure areas. 【Safe and Reliable】This product uses electronic components as a control device, which does not cause spark during work, ensuring safety and reliability. It is widely used for low-pressure ignition start-up of water heaters and automatic water cycles of solar water heaters. Features:This water flow switch uses water flow magnetic control device and on-off control sensing elements, so as to switch on or off pump.Stable performance; induction chamber, magnetic control chamber and electronic components are designed separately in order to avoid switch failure caused by iron matter in pipeline is magnetic adsorbed.High temperature resistant materials allows the product to be used for both hot(up to 70℃) and cold water.Low water pressure startup; reset spring is made of high quality stainless steel; it can start up pump when water pressure is >0.03KG.The electronic components as control device will not cause spark during work which is quite safe.This product is widely used for low pressure area family, especially important for low water pressure ignition start-up of water heater, automatic water cycle of solar water heater. Specifications:Model: HT-800 Working Voltage: 220VWorking Current: 1.6AMax. Current: 4AConnection Thread: G1Max. Power: 200WLifespan: >100,000 timesSuitable Liquid: Water or other liquid of similar physical and chemical propertyLiquid Pressure: <0.6Mpa Liquid Temperature: <70℃ Package Includes:1 x Flow Switch Package List